Thrashing a fascist right-winger is OK (12)
I believe the answer is:
satisfactory
'is ok' is the definition.
(similar in meaning)
'thrashing a fascist right-winger' is the wordplay.
I cannot quite see how this works, but
'a' is present in the answer.
an anagram of 'fascist' is 'stisfac' which is present in the remaining letters.
'right' could be 'tory' (Tory can mean Conservative or right-wing) and 'tory' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for satisfactory that I've seen before include "Fulfilling expectations" , "OK" , "Good enough" , "Meeting expectations" , "unexceptional" .)